However looking at all the options it essentially boils down to three things:
1. The U.S. cedes real control to the international community
2. The U.S. cedes token control to the international community (option #2 proposes creating an international forum to "discuss" internet issues - read: eventually inconsequential)
3. Start from scratch
While it's tempting to hate on the Americans for refusing to give up control of the Internet's foundations, any kind of sharing would lead to power sharing with nations including China and Russia.
Slashdot has posted numerous articles about the Chinese iron fist when it comes to dealing with anything on the internet. I find it frightening to even think about the prospect of having my internet access dictated in some part by the blatantly power hungry government of this nation. Yes, the Americans are no white knights either, but I'd rather have their faulty system of checks and balances than the outright corruption and byzantine system of governance that still controls much of the world today.
Think about the recent stories of "adopting a Chinese blog" to protect the bloggers from chinese government reprisals. What do you think the Chinese would demand first if they were given real control of our internet access? Control of any content that originates from China - which means these bloggers who almost got away, would be tracked down again.
Eventually the answer is going to come from somewhere in between. There isn't going to be a peaceful transition of the entire system from the americans to the international community. But rather different parts of the world will begin to develop their own networks with differing levels of compatibility, and software and hardware vendors are going to make a killing in providing systems that can handle these multiple formats and networks.
This diversity will arise not only from politics, but from new technology too and I can totally see the European Union developing a "new internet" that provides alternative control to what the americans have -- and then subsidizing the cost of this network so that it is taken up by major subsets such as India and the Pacific, until it eventually supercedes the now "legacy" american systems...